Home / 4,088.64-5,645.49-3,142.92

Finding the Fourth Proportional to 4,088.64, 5,645.49 and 3,142.92

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Solution

The fourth proportional to 4,088.64, 5,645.49 and 3,142.92 is: 4,339.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,088.64 : 5,645.49 = 3,142.92 : x
  2. Step 2: Convert to fraction form
    4,088.64/5,645.49 = 3,142.92/x
  3. Step 3: Cross multiply
    4,088.64x = 5,645.49 × 3,142.92
  4. Step 4: Simplify right side
    4,088.64x = 17,743,323.43
  5. Step 5: Solve for x
    x = 17,743,323.43/4,088.64
  6. Step 6: Final answer
    x = 4,339.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.